In order to update your asset inventory, you'd like to have a list of your assets as per Qualys, and also retrieve assets' manufacturer, model, and the installed software. Preferably in a programmatic fashion that can easily be automated.

This is best accomplished with the querying Qualys' API for data collected by Qualys' Cloud Agent.

As per the Asset Management and Tagging API v2 (as of version 2.31 of January 20th, 2018), you can use the call to "/qps/rest/2.0/search/am/hostasset" to get a list of assets, which also includes the "<manufacturer>", "<model>", and "<software>" tags.

You can use curl to test this (be sure to use your own username, password, and baseurl of the Qualys SOC you are on):